Search Console Link not found

I am checking error results in Google Search Console and trying to find the best practice.

I have a few 404 not found errors that are posts that don't exist on my site. They did however exist on an old site (separate domain) and I just updated that Canonical link to my new site (separate domain as well)

Google is looking for the post at www.simplifychurch.com, but the post exists at learn.simplifychurch.com. The original post was at axessnetwork.com (where I updated the canonical link to the new)

What can i do to update Google's error result with the new link? I can't seem to find a way to do that in Search Console.

First, you need to setup Search Console properties for every domain. For example, you'll have a property set up for each:
http://www.simplifychurch.com
http://simplifychurch.com
http://learn.simplifychurch.com

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